Most people have tried hand grippers before but anyone who's into grippers know how rare choked grippers are these are designed so you can start the gripper at any different position you want. You can work different range of motions and do forced negatives a lot easier than on a traditional gripper. Brand new only opened box to take a photo I have 300lb, 325lb, 350lb and 400lb all listed separately but will make a set deal for £110 posted. this listing is for the 400lb one of the strongest grippers on the market! (these are not COC)
eBay